This is best accomplished by thorough boiling, but in cases where this can not be at once carried out, it is advisable to use some chemical antiseptic; of these, perhaps the best is creo-carboline, which may be employed in a 1-500 solution in water; where this solution is not obtainable, a 5-per-cent. solution of carbolic acid in water will answer.

None of the excretions from persons afflicted with typhoid fever should ever be emptied until thoroughly disinfected with creo-carboline or strong lime-water, and under no circumstances should these be poured out in the neighborhood of springs or wells.